Additional file 6.

Figure S5. Histogram of percentage of marked and total lice donated. In this figure the dark
grey bars represent the percentage of lice donated out of the total number of lice
found on the body. The light grey bars represent the percentage of lice donated out
of the total number of marked lice from that individual. When including the total
number of lice on the body (both marked and unmarked), five individuals donated more
than 50% of their lice, and received on average 0.6 lice. The remaining individuals
who donated less than 50% of their total lice received on average 7 lice. This suggests
that whether examining the total proportion of lice donated, or the proportion of
marked lice that were donated, the trends are the same, and individuals with more
lice typically receive more lice from others, and individuals with fewer lice typically
donate a larger percentage of them. There is no significant correlation between the
total number of lice and the number of lice donated (r = -0.08, p = 0.079), or between
the number of lice marked and the number of lice donated (r = 0.036, p = 0.90).